Software:
December rank - December sales - Lifetime US sales

1. 360 - Call of Duty 4: Modern Warfare (Activision) - 1,470,000 (3,040,000)
2. Wii - Super Mario Galaxy (Nintendo) – 1,400,000 (2,520,000)
3. PS2 - Guitar Hero III: Legends of Rock (Activision) - 1,250,000 (2,217,000)
4. Wii - Wii Play w/Remote (Nintendo) - 1,080,000 (4,113,700)
5. 360 - Assassin’s Creed (Ubisoft) - 893,700 (1,873,700)
6. 360 – Halo 3 (Microsoft) – 742,700 (4,863,500)
7. NDS Brain Age 2: More Training in Minutes (Nintendo) - 659,500
8. PS2 Madden NFL 08 (Electronic Arts) - 655,200
9. 360 - Guitar Hero III: Legends of Rock (Activision)- 624,600
10. Wii - Mario & Sonic at the Olympics 613,000 (946,000)

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Hardware:
December rank - December sales - Lifetime US sales

01. NDS - 2,470,000 (17,591,100)
02. Wii - 1,350,000 (7,369,400)
03. 360 - 1,260,000 (9,124,800)
04. PS2 - 1,100,000 (41,045,800)
05. PSP - 1,060,000 (10,512,900)
06. PS3 - 797,700 (3,249,800)